Disappointing service

I have processed an upgrade on the 27th of March and I have not received my device yet. Yes I understand that I am on a back order but nobody is keeping me updated. I call the business call center every third day and ask to speak to the consultant that processed my upgrade but she never returns my calls. I have asked for feedback regarding my upgrade and nobody is able to give me any feedback. I am truly disappointed in the service received from Vodacom business, as we have been clients of Vodacom for over 20 years.